| Server IP : 147.79.69.51 / Your IP : 216.73.216.200 Web Server : LiteSpeed System : Linux in-mum-web669.main-hosting.eu 5.14.0-503.23.2.el9_5.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Feb 12 05:52:18 EST 2025 x86_64 User : u479334040 ( 479334040) PHP Version : 8.2.27 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : OFF | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /usr/include/linux/ |
Upload File : |
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* DMABUF Heaps Userspace API
*
* Copyright (C) 2011 Google, Inc.
* Copyright (C) 2019 Linaro Ltd.
*/
#ifndef _LINUX_DMABUF_POOL_H
#define _LINUX_DMABUF_POOL_H
#include <linux/ioctl.h>
#include <linux/types.h>
/**
* DOC: DMABUF Heaps Userspace API
*/
/* Valid FD_FLAGS are O_CLOEXEC, O_RDONLY, O_WRONLY, O_RDWR */
#define DMA_HEAP_VALID_FD_FLAGS (O_CLOEXEC | O_ACCMODE)
/* Currently no heap flags */
#define DMA_HEAP_VALID_HEAP_FLAGS (0)
/**
* struct dma_heap_allocation_data - metadata passed from userspace for
* allocations
* @len: size of the allocation
* @fd: will be populated with a fd which provides the
* handle to the allocated dma-buf
* @fd_flags: file descriptor flags used when allocating
* @heap_flags: flags passed to heap
*
* Provided by userspace as an argument to the ioctl
*/
struct dma_heap_allocation_data {
__u64 len;
__u32 fd;
__u32 fd_flags;
__u64 heap_flags;
};
#define DMA_HEAP_IOC_MAGIC 'H'
/**
* DOC: DMA_HEAP_IOCTL_ALLOC - allocate memory from pool
*
* Takes a dma_heap_allocation_data struct and returns it with the fd field
* populated with the dmabuf handle of the allocation.
*/
#define DMA_HEAP_IOCTL_ALLOC _IOWR(DMA_HEAP_IOC_MAGIC, 0x0,\
struct dma_heap_allocation_data)
#endif /* _LINUX_DMABUF_POOL_H */